+require('lualibs')
+require('luatexja.rmlgbm'); local ltjr = luatexja.rmlgbm -- must be 1st
+require('luatexja.base'); local ltjb = luatexja.base
+require('luatexja.charrange'); local ltjc = luatexja.charrange
+require('luatexja.jfont'); local ltjf = luatexja.jfont
+require('luatexja.inputbuf'); local ltji = luatexja.inputbuf
+require('luatexja.jfmglue'); local ltjj = luatexja.jfmglue
+require('luatexja.math'); local ltjm = luatexja.math
+require('luatexja.pretreat'); local ltjp = luatexja.pretreat
+require('luatexja.stack'); local ltjs = luatexja.stack
+require('luatexja.setwidth'); local ltjw = luatexja.setwidth
+
local node_type = node.type
+local node_new = node.new
+local node_prev = node.prev
+local node_next = node.next
local has_attr = node.has_attribute
local node_insert_before = node.insert_before
local node_insert_after = node.insert_after
local node_hpack = node.hpack
-local round = tex.round
-local node_new = node.new
+
+local id_penalty = node.id('penalty')
local id_glyph = node.id('glyph')
local id_glue_spec = node.id('glue_spec')
local id_glue = node.id('glue')
+local id_kern = node.id('kern')
+local id_hlist = node.id('hlist')
+local id_vlist = node.id('vlist')
+local id_rule = node.id('rule')
+local id_math = node.id('math')
local id_whatsit = node.id('whatsit')
-local next_node = node.next
-local attr_jchar_class = luatexbase.attributes['luatexja@charclass']
-local attr_curjfnt = luatexbase.attributes['luatexja@curjfnt']
-local attr_yablshift = luatexbase.attributes['luatexja@yablshift']
+local sid_user = node.subtype('user_defined')
+
+local attr_jchar_class = luatexbase.attributes['ltj@charclass']
+local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
+local attr_yablshift = luatexbase.attributes['ltj@yablshift']
+local attr_icflag = luatexbase.attributes['ltj@icflag']
+local cat_lp = luatexbase.catcodetables['latex-package']
+
+local ITALIC = 1
+local PACKED = 2
+local KINSOKU = 3
+local FROM_JFM = 4
+local LINE_END = 5
+local KANJI_SKIP = 6
+local XKANJI_SKIP = 7
+local PROCESSED = 8
+local IC_PROCESSED = 9
+local BOXBDD = 15
+
+------------------------------------------------------------------------
+-- naming:
+-- ltj.ext_... : called from \directlua{}
+-- ltj.int_... : called from other Lua codes, but not from \directlua{}
+-- (other) : only called from this file
-- error messages
function ltj.error(s,t)
-- Three aux. functions, bollowed from tex.web
local unity=65536
-local function print_scaled(s)
+function print_scaled(s)
local out=''
local delta=10
if s<0 then
return out
end
--- return true if and only if p is a Japanese character node
-local function is_japanese_glyph_node(p)
- return p and (p.id==id_glyph)
- and (p.font==has_attr(p,attr_curjfnt))
-end
-
----------- Stack table
----- ltj.stack_ch_table [stack_level] : 情報を格納したテーブル
----- .auto_spacing, .auto_xspacing: \autospacing etc.
----- [chr_code].pre, [chr_code].post, [chr_code].xsp
-
-ltj.stack_ch_table={}; ltj.stack_ch_table[0]={}
-
-local function new_stack_level()
- local i = tex.getcount('ltj@stack@pbp')
- if tex.currentgrouplevel > tex.getcount('ltj@group@level@pbp') then
- i = i+1 -- new stack level
- tex.setcount('ltj@group@level@pbp', tex.currentgrouplevel)
- for j,v in pairs(ltj.stack_ch_table) do -- clear the stack above i
- if j>=i then ltj.stack_ch_table[j]=nil end
- end
- ltj.stack_ch_table[i] = table.fastcopy(ltj.stack_ch_table[i-1])
- tex.setcount('ltj@stack@pbp', i)
- end
- return i
-end
-function ltj.set_ch_table(g,m,c,p)
- local i = new_stack_level()
- if not ltj.stack_ch_table[i][c] then ltj.stack_ch_table[i][c] = {} end
- ltj.stack_ch_table[i][c][m] = p
- if g=='global' then
- for j,v in pairs(ltj.stack_ch_table) do
- if not ltj.stack_ch_table[j][c] then ltj.stack_ch_table[j][c] = {} end
- ltj.stack_ch_table[j][c][m] = p
- end
- end
-end
+function math.two_add(a,b) return a+b end
+function math.two_average(a,b) return (a+b)/2 end
-local function get_penalty_table(m,c)
- local i = tex.getcount('ltj@stack@pbp')
- i = ltj.stack_ch_table[i][c]
- if i then i=i[m] end
- return i or 0
-end
+---- table: charprop_stack_table [stack_level][chr_code].{pre|post|xsp}
-local function get_inhibit_xsp_table(c)
- local i = tex.getcount('ltj@stack@pbp')
- i = ltj.stack_ch_table[i][c]
- if i then i=i.xsp end
- return i or 3
-end
+------------------------------------------------------------------------
+-- CODE FOR GETTING/SETTING PARAMETERS
+------------------------------------------------------------------------
---------
-function ltj.out_ja_parameter_one(k)
- if k == 'yabaselineshift' then
- tex.write(print_scaled(tex.getattribute('luatexja@yablshift'))..'pt')
- elseif k == 'ykbaselineshift' then
- tex.write(print_scaled(tex.getattribute('luatexja@ykblshift'))..'pt')
+-- EXT: print parameters that don't need arguments
+function ltj.ext_get_parameter_unary(k)
+ if k == 'yalbaselineshift' then
+ tex.write(print_scaled(tex.getattribute('ltj@yablshift'))..'pt')
+ elseif k == 'yjabaselineshift' then
+ tex.write(print_scaled(tex.getattribute('ltj@ykblshift'))..'pt')
elseif k == 'kanjiskip' then
- tex.write(print_spec(tex.getskip('kanjiskip')))
+ tex.write(print_spec(ltjs.get_skip_table('kanjiskip', tex.getcount('ltj@@stack'))))
elseif k == 'xkanjiskip' then
- tex.write(print_spec(tex.getskip('xkanjiskip')))
+ tex.write(print_spec(ltjs.get_skip_table('xkanjiskip', tex.getcount('ltj@@stack'))))
elseif k == 'jcharwidowpenalty' then
- tex.write(tex.getcount('jcharwidowpenalty'))
+ tex.write(ltjs.get_penalty_table('jwp', 0, 0, tex.getcount('ltj@@stack')))
elseif k == 'autospacing' then
- tex.write(tostring(ltj.auto_spacing))
+ tex.write(tex.getattribute('ltj@autospc'))
elseif k == 'autoxspacing' then
- tex.write(tostring(ltj.auto_xspacing))
+ tex.write(tex.getattribute('ltj@autoxspc'))
elseif k == 'differentjfm' then
- if ltj.calc_between_two_jchar_aux==ltj.calc_between_two_jchar_aux_large then
+ if luatexja.jfmglue.diffmet_rule == math.max then
tex.write('large')
- elseif ltj.calc_between_two_jchar_aux==ltj.calc_between_two_jchar_aux_small then
+ elseif luatexja.jfmglue.diffmet_rule == math.min then
tex.write('small')
- elseif ltj.calc_between_two_jchar_aux==ltj.calc_between_two_jchar_aux_average then
+ elseif luatexja.jfmglue.diffmet_rule == math.two_average then
tex.write('average')
- elseif ltj.calc_between_two_jchar_aux==ltj.calc_between_two_jchar_aux_both then
+ elseif luatexja.jfmglue.diffmet_rule == math.two_add then
tex.write('both')
else -- This can't happen.
tex.write('???')
end
end
-function ltj.out_ja_parameter_two(k,c)
- if k == 'prebreakpenalty' then
- tex.write(get_penalty_table('pre',c))
- elseif k == 'postbreakpenalty' then
- tex.write(get_penalty_table('post',c))
- elseif k == 'cjkxspmode' then
- local i = get_inhibit_xsp_table(c)
- if i==0 then tex.write('inhibit')
- elseif i==1 then tex.write('postonly')
- elseif i==2 then tex.write('preonly')
- else tex.write('allow')
+-- EXT: print parameters that need arguments
+function ltj.ext_get_parameter_binary(k,c)
+ if k == 'jacharrange' then
+ if c<0 or c>216 then
+ ltjb.package_error('luatexja',
+ 'invalid character range number (' .. c .. ')',
+ 'A character range number should be in the range 0..216,\n'..
+ 'So I changed this one to zero.')
+ c=0
end
- elseif k == 'asciixspmode' then
- local i = get_inhibit_xsp_table(c)
- if i==0 then tex.write('inhibit')
- elseif i==2 then tex.write('postonly')
- elseif i==1 then tex.write('preonly')
- else tex.write('allow')
- end
- end
-end
-
-
----------
-function ltj.print_global()
- if ltj.isglobal=='global' then tex.sprint('\\global') end
-end
-
-function ltj.create_ihb_node()
- local g=node_new(id_whatsit, node.subtype('user_defined'))
- g.user_id=30111; g.type=number; g.value=1
- node.write(g)
-end
-
-
-local function find_size_metric(px)
- if is_japanese_glyph_node(px) then
- return ltj.font_metric_table[px.font].size, ltj.font_metric_table[px.font].jfm
- else
- return nil, nil
- end
-end
-
-local function new_jfm_glue(size,mt,bc,ac)
--- mt: metric key, bc, ac: char classes
- local g=nil
- local h
- local w=bc*0x800+ac
- if ltj.metrics[mt].glue[w] then
- h=node_new(id_glue_spec)
- h.width =round(size*ltj.metrics[mt].glue[w].width)
- h.stretch=round(size*ltj.metrics[mt].glue[w].stretch)
- h.shrink =round(size*ltj.metrics[mt].glue[w].shrink)
- h.stretch_order=0; h.shrink_order=0
- g=node_new(id_glue)
- g.subtype=0; g.spec=h; return g
- elseif ltj.metrics[mt].kern[w] then
- g=node_new(node.id('kern'))
- g.subtype=0; g.kern=round(size*ltj.metrics[mt].kern[w]); return g
+ tex.write(ltjc.get_range_setting(c))
else
- return nil
- end
-end
-
-
-function calc_between_two_jchar(q,p)
- -- q, p: node (possibly null)
- local ps,pm,qs,qm,g,h
- if not p then -- q is the last node
- qs, qm = find_size_metric(q)
- if not qm then
- return nil
- else
- g=new_jfm_glue(qs,qm,
- has_attr(q,attr_jchar_class),
- ltj.find_char_type('boxbdd',qm))
+ if c<0 or c>0x10FFFF then
+ ltjb.package_error('luatexja',
+ 'bad character code (' .. c .. ')',
+ 'A character number must be between -1 and 0x10ffff.\n'..
+ "(-1 is used for denoting `math boundary')\n"..
+ 'So I changed this one to zero.')
+ c=0
end
- elseif not q then
- -- p is the first node etc.
- ps, pm = find_size_metric(p)
- if not pm then
- return nil
- else
- g=new_jfm_glue(ps,pm,
- ltj.find_char_type('boxbdd',pm),
- has_attr(p,attr_jchar_class))
- end
- else -- p and q are not nil
- qs, qm = find_size_metric(q)
- ps, pm = find_size_metric(p)
- if (not pm) and (not qm) then
- -- Both p and q are NOT Japanese glyph node
- return nil
- elseif (qs==ps) and (qm==pm) then
- -- Both p and q are Japanese glyph node, and same metric and size
- g=new_jfm_glue(ps,pm,
- has_attr(q,attr_jchar_class),
- has_attr(p,attr_jchar_class))
- elseif not qm then
- -- q is not Japanese glyph node
- g=new_jfm_glue(ps,pm,
- ltj.find_char_type('jcharbdd',pm),
- has_attr(p,attr_jchar_class))
- elseif not pm then
- -- p is not Japanese glyph node
- g=new_jfm_glue(qs,qm,
- has_attr(q,attr_jchar_class),
- ltj.find_char_type('jcharbdd',qm))
- else
- g=new_jfm_glue(qs,qm,
- has_attr(q,attr_jchar_class),
- ltj.find_char_type('diffmet',qm))
- h=new_jfm_glue(ps,pm,
- ltj.find_char_type('diffmet',pm),
- has_attr(p,attr_jchar_class))
- g=ltj.calc_between_two_jchar_aux(g,h)
+ if k == 'prebreakpenalty' then
+ tex.write(ltjs.get_penalty_table('pre', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'postbreakpenalty' then
+ tex.write(ltjs.get_penalty_table('post', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'kcatcode' then
+ tex.write(ltjs.get_penalty_table('kcat', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'chartorange' then
+ tex.write(ltjc.char_to_range(c))
+ elseif k == 'jaxspmode' or k == 'alxspmode' then
+ tex.write(ltjs.get_penalty_table('xsp', c, 3, tex.getcount('ltj@@stack')))
end
end
- return g
end
-
--- In the beginning of a hbox created by line breaking, there are the followings:
--- o a hbox by \parindent
--- o a whatsit node which contains local paragraph materials.
--- When we insert jfm glues, we ignore these nodes.
-function ltj.is_parindent_box(p)
- if node_type(p.id)=='hlist' then
- return (p.subtype==3)
- -- hlist (subtype=3) is a box by \parindent
- elseif p.id==id_whatsit then
- return (p.subtype==node.subtype('local_par'))
- end
+-- EXT: print \global if necessary
+function ltj.ext_print_global()
+ if ltj.isglobal=='global' then tex.sprint(cat_lp, '\\global') end
end
-local function add_kinsoku_penalty(head,p)
- local c = p.char
- local e = get_penalty_table('pre',c)
- if e~=0 then
- local q = node.prev(p)
- if q and node_type(q.id)=='penalty' then
- q.penalty=q.penalty+e
- else
- q=node_new(node.id('penalty'))
- q.penalty=e
- node_insert_before(head,p,q)
- end
- end
- e = get_penalty_table('post',c)
- if e~=0 then
- local q = next_node(p)
- if q and node_type(q.id)=='penalty' then
- q.penalty=q.penalty+e
- return false
- else
- q=node_new(node.id('penalty'))
- q.penalty=e
- node_insert_after(head,p,q)
- return true
- end
- end
-end
-
--- Insert jfm glue: main routine
-
-local function insert_jfm_glue(head)
+-- main process
+-- mode = true iff main_process is called from pre_linebreak_filter
+local function main_process(head, mode, dir)
local p = head
- local q = nil -- the previous node of p
- local g
- local ihb_flag = false
- local inserted_after_penalty = false
- if not p then
- return head
- end
- while p and ltj.is_parindent_box(p) do p=next_node(p) end
- while p do
- if p.id==id_whatsit and p.subtype==node.subtype('user_defined')
- and p.user_id==30111 then
- g=p; p=next_node(p);
- ihb_flag=true; head,p=node.remove(head, g)
- else
- g=calc_between_two_jchar(q,p)
- if g and (not ihb_flag) then
- h = node_insert_before(head,p,g)
- if not q then head=h end
- -- If p is the first node (=head), the skip is inserted
- -- before head. So we must change head.
- end
- --if is_japanese_glyph_node(q) then
- -- node.insert(q, inserted_after_penalty)
- --end
- q=p; ihb_flag=false;
- if is_japanese_glyph_node(p)
- and add_kinsoku_penalty(head,p) then
- p=next_node(p); inserted_after_penalty = true
- else
- inserted_after_penalty = false
- end
- p=next_node(p)
- end
- end
- -- Insert skip after the last node
- g=calc_between_two_jchar(q,nil)
- if g then h = node_insert_after(head,q,g) end
- return head
-end
-
-
-
--- Insert \xkanjiskip at the boundaries between Japanese characters
--- and non-Japanese characters.
--- We also insert \kanjiskip between Kanji in this function.
-local kanji_skip={}
-local xkanji_skip={}
-local cx = nil
-local no_skip=0
-local after_schar=1
-local after_wchar=2
-local insert_skip=no_skip
-
-
--- In the next two function, cx is the Kanji code.
-local function insert_akxsp(head,q)
- if get_inhibit_xsp_table(cx)<=1 then return end
- local g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(xkanji_skip)
- node_insert_after(head,q,g)
-end
-
-local function insert_kaxsp(head,q,p)
- local g=true
- local c=p.char
- while p.components and p.subtype
- and math.floor(p.subtype/2)%2==1 do
- p=p.components; c = p.char
- end
- if get_inhibit_xsp_table(c)%2 == 1 then
- if get_inhibit_xsp_table(cx)%2==0 then g=false end
- else
- g=false
- end
- if g then
- g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(xkanji_skip)
- node_insert_after(head,q,g)
- end
+ p = ltjj.main(p,mode)
+ p = ltjw.set_ja_width(p, dir)
+ return p
end
-local function set_insert_skip_after_achar(p)
- local c=p.char
- while p.components and p.subtype
- and math.floor(p.subtype/2)%2==1 do
- p=node.tail(p.components); c = p.char
- end
- if get_inhibit_xsp_table(c)>=2 then
- insert_skip=after_schar
- else
- insert_skip=no_skip
- end
-end
-
--- Insert \xkanjiskip before p, a glyph node
-local function insks_around_char(head,q,p)
- if is_japanese_glyph_node(p) then
- cx=p.char
- if is_japanese_glyph_node(q) then
- local g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(kanji_skip)
- node_insert_before(head,p,g)
- elseif insert_skip==after_schar then
- insert_akxsp(head,q)
+-- debug
+local debug_depth
+function ltj.ext_show_node_list(head,depth,print_fn)
+ debug_depth = depth
+ if head then
+ while head do
+ debug_show_node_X(head, print_fn); head = node_next(head)
end
- insert_skip=after_wchar
else
- if insert_skip==after_wchar then
- insert_kaxsp(head,q,p)
- end
- set_insert_skip_after_achar(p)
+ print_fn(debug_depth .. ' (null list)')
end
end
-
--- Return first and last glyph nodes in a hbox
-local first_char = nil
-local last_char = nil
-local find_first_char = nil
-local function check_box(bp)
- local p = bp; local flag = false
- while p do
- local pt = node_type(p.id)
- if pt=='glyph' then
- repeat
- if find_first_char then
- first_char=p; find_first_char=false
- end
- last_char=p; flag=true; p=next_node(p)
- if not p then return flag end
- until p.id~=id_glyph
+function ltj.ext_show_node(head,depth,print_fn)
+ debug_depth = depth
+ if head then
+ debug_show_node_X(head, print_fn)
+ else
+ print_fn(debug_depth .. ' (null list)')
+ end
+end
+function debug_show_node_X(p,print_fn)
+ local k = debug_depth
+ local s
+ local pt=node_type(p.id)
+ local base = debug_depth .. string.format('%X', has_attr(p,attr_icflag) or 0)
+ .. ' ' .. pt .. ' ' .. tostring(p.subtype )
+ if pt == 'glyph' then
+ s = base .. ' ' .. utf.char(p.char) .. ' ' .. tostring(p.font)
+ .. ' (' .. print_scaled(p.height) .. '+'
+ .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width)
+ print_fn(s)
+ elseif pt=='hlist' then
+ s = base .. '(' .. print_scaled(p.height) .. '+'
+ .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width)
+ if p.shift~=0 then
+ s = s .. ', shifted ' .. print_scaled(p.shift)
end
- if pt=='hlist' then
- flag=true
- if p.shift==0 then
- if check_box(p.head) then flag=true end
- else if find_first_char then
- find_first_char=false
- else
- last_char=nil
- end
- end
- elseif pt == 'ins' or pt == 'mark'
- or pt == 'adjust'
- or pt == 'whatsit' or pt == 'penalty' then
- p=p
- else
- flag=true
- if find_first_char then
- find_first_char=false
+ if p.glue_sign >= 1 then
+ s = s .. ' glue set '
+ if p.glue_sign == 2 then s = s .. '-' end
+ s = s .. tostring(math.floor(p.glue_set*10000)/10000)
+ if p.glue_order == 0 then
+ s = s .. 'pt'
else
- last_char=nil
+ s = s .. 'fi'
+ for i = 2, p.glue_order do s = s .. 'l' end
end
end
- p=next_node(p)
- end
- return flag
-end
-
--- Insert \xkanjiskip around p, an hbox
-local function insks_around_hbox(head,q,p)
- if p.shift==0 then
- find_first_char=true; first_char=nil; last_char=nil
- if check_box(p.head) then
- -- first char
- if is_japanese_glyph_node(first_char) then
- cx=first_char.char
- if insert_skip==after_schar then
- insert_akxsp(head,q)
- elseif insert_skip==after_wchar then
- local g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(kanji_skip)
- node_insert_before(head,p,g)
- end
- insert_skip=after_wchar
- elseif first_char then
- cx=first_char.char
- if insert_skip==after_wchar then
- insert_kaxsp(head,q,first_char)
- end
- set_insert_skip_after_achar(first_char)
- end
- -- last char
- if is_japanese_glyph_node(last_char) then
- if is_japanese_glyph_node(next_node(p)) then
- local g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(kanji_skip)
- node_insert_after(head,p,g)
- end
- insert_skip=after_wchar
- elseif last_char then
- set_insert_skip_after_achar(last_char)
- else insert_skip=no_skip
- end
- else insert_skip=no_skip
+ if has_attr(p, attr_icflag, PACKED) then
+ s = s .. ' (packed)'
end
- else insert_skip=no_skip
- end
-end
-
--- Insert \xkanjiskip around p, a penalty
-local function insks_around_penalty(head,q,p)
- local r=next_node(p)
- if r and r.id==id_glyph then
- if is_japanese_glyph_node(r) then
- cx=r.char
- if is_japanese_glyph_node(p) then
- local g = node_new(id_glue)
- g.subtype=0; g.spec=node.copy(kanji_skip)
- node_insert_before(head,r,g)
- elseif insert_skip==insert_schar then
- insert_akxsp(head,p)
- end
- q=p; p=next_node(p)
- insert_skip=after_wchar
- else
- if insert_skip==after_wchar then
- insert_kaxsp(head,p,r)
- end
- set_insert_skip_after_achar(r)
+ print_fn(s)
+ local q = p.head
+ debug_depth=debug_depth.. '.'
+ while q do
+ debug_show_node_X(q, print_fn); q = node_next(q)
end
- end
-end
-
--- Insert \xkanjiskip around p, a kern
-local function insks_around_kern(head,q,p)
- if p.subtype==1 then -- \kern or \/
- if not has_attr(p,luatexbase.attributes['luatexja@icflag']) then
- insert_skip=no_skip
+ debug_depth=k
+ elseif pt == 'glue' then
+ s = base .. ' ' .. print_spec(p.spec)
+ if has_attr(p, attr_icflag)==FROM_JFM then
+ s = s .. ' (from JFM)'
+ elseif has_attr(p, attr_icflag)==KANJI_SKIP then
+ s = s .. ' (kanjiskip)'
+ elseif has_attr(p, attr_icflag)==XKANJI_SKIP then
+ s = s .. ' (xkanjiskip)'
end
- elseif p.subtype==2 then -- \accent: We ignore the accent character.
- local v = next_node(next_node(next_node(p)))
- if v and v.id==id_glyph then
- insks_around_char(head,q,v)
+ print_fn(s)
+ elseif pt == 'kern' then
+ s = base .. ' ' .. print_scaled(p.kern) .. 'pt'
+ if p.subtype==2 then
+ s = s .. ' (for accent)'
+ elseif has_attr(p, attr_icflag)==IC_PROCESSED then
+ s = s .. ' (italic correction)'
+ -- elseif has_attr(p, attr_icflag)==ITALIC then
+ -- s = s .. ' (italic correction)'
+ elseif has_attr(p, attr_icflag)==FROM_JFM then
+ s = s .. ' (from JFM)'
+ elseif has_attr(p, attr_icflag)==LINE_END then
+ s = s .. " (from 'lineend' in JFM)"
end
- end
-end
-
--- Insert \xkanjiskip around p, a math_node
-local function insks_around_math(head,q,p)
- local g = { char = -1 }
- if (p.subtype==0) and (insert_skip==after_wchar) then
- insert_kaxsp(head,q,g)
- insert_skip=no_skip
- else
- set_insert_skip_after_achar(g)
- end
-end
-
-local function insert_kanji_skip(head)
- if ltj.auto_spacing then
- kanji_skip=tex.skip['kanjiskip']
- else
- kanji_skip=node_new(id_glue_spec)
- kanji_skip.width=0; kanji_skip.stretch=0; kanji_skip.shrink=0
- end
- if ltj.auto_xspacing then
- xkanji_skip=tex.skip['xkanjiskip']
- else
- xkanji_skip=node_new(id_glue_spec)
- xkanji_skip.width=0; xkanji_skip.stretch=0; xkanji_skip.shrink=0
- end
- local p=head -- 「現在のnode」
- local q=nil -- pの一つ前
- insert_skip=no_skip
- while p do
- local pt = node_type(p.id)
- if pt=='glyph' then
- repeat
- insks_around_char(head,q,p)
- q=p; p=next_node(p)
- until (not p) or p.id~=id_glyph
+ print_fn(s)
+ elseif pt == 'penalty' then
+ s = base .. ' ' .. tostring(p.penalty)
+ if has_attr(p, attr_icflag)==KINSOKU then
+ s = s .. ' (for kinsoku)'
+ end
+ print_fn(s)
+ elseif pt == 'whatsit' then
+ s = base .. ' subtype: ' .. tostring(p.subtype)
+ if p.subtype==sid_user then
+ s = s .. ' user_id: ' .. p.user_id .. ' ' .. p.value
else
- if pt == 'hlist' then
- insks_around_hbox(head,q,p)
- elseif pt == 'penalty' then
- insks_around_penalty(head,q,p)
- elseif pt == 'kern' then
- insks_around_kern(head,q,p)
- elseif pt == 'math' then
- insks_around_math(head,q,p)
- elseif pt == 'ins' or pt == 'mark'
- or pt == 'adjust'
- or pt == 'whatsit' then
- -- do nothing
- p=p
- else
- -- rule, disc, glue, margin_kern
- insert_skip=no_skip
- end
- q=p; p=next_node(p)
+ s = s .. node.subtype(p.subtype)
end
- end
- return head
-end
-
--- Shift baseline
-local function baselineshift(head)
- local p=head
- local m=false -- is in math mode?
- while p do
- local v=has_attr(p,attr_yablshift)
- if v then
- local pt = node_type(p.id)
- if pt=='glyph' then
- p.yoffset=p.yoffset-v
- elseif pt=='math' then
- m=(p.subtype==0)
- end
- if m then -- boxes and rules are shifted only in math mode
- if pt=='hlist' or pt=='vlist' then
- p.shift=p.shift+v
- elseif pt=='rule' then
- p.height=p.height-v; p.depth=p.depth+v
- end
- end
+ print_fn(s)
+ -------- math node --------
+ elseif pt=='noad' then
+ s = base ; print_fn(s)
+ if p.nucleus then
+ debug_depth = k .. 'N'; debug_show_node_X(p.nucleus, print_fn);
end
- p=next_node(p)
- end
- return head
-end
-
-
---====== Adjust the width of Japanese glyphs
-
--- TeX's \hss
-local function get_hss()
- local hss = node_new(id_glue)
- local hss_spec = node_new(id_glue_spec)
- hss_spec.width = 0
- hss_spec.stretch = 65536
- hss_spec.stretch_order = 2
- hss_spec.shrink = 65536
- hss_spec.shrink_order = 2
- hss.spec = hss_spec
- return hss
-end
-
-local function set_ja_width(head)
- local p = head
- local t,s,th, g, q,a
- while p do
- if is_japanese_glyph_node(p) then
- t=ltj.metrics[ltj.font_metric_table[p.font].jfm]
- s=t.char_type[has_attr(p,attr_jchar_class)]
- if not(s.left==0.0 and s.down==0.0
- and round(s.width*ltj.font_metric_table[p.font].size)==p.width) then
- -- must be encapsuled by a \hbox
- head, q = node.remove(head,p)
- p.next=nil
- p.yoffset=round(p.yoffset-ltj.font_metric_table[p.font].size*s.down)
- p.xoffset=round(p.xoffset-ltj.font_metric_table[p.font].size*s.left)
- node_insert_after(p,p,get_hss())
- g=node_hpack(p, round(ltj.font_metric_table[p.font].size*s.width)
- , 'exactly')
- g.height=round(ltj.font_metric_table[p.font].size*s.height)
- g.depth=round(ltj.font_metric_table[p.font].size*s.depth)
- head,p = node_insert_before(head,q,g)
- p=q
- else p=next_node(p)
- end
- else p=next_node(p)
+ if p.sup then
+ debug_depth = k .. '^'; debug_show_node_X(p.sup, print_fn);
end
- end
- return head
-end
-
--- main process
-local function main_process(head)
- local p = head
- p = insert_jfm_glue(p)
- p = insert_kanji_skip(p)
- p = baselineshift(p)
- p = set_ja_width(p)
- return p
-end
-
--- debug
-local depth=""
-function ltj.show_node_list(head)
- local p =head; local k = depth
- depth=depth .. '.'
- while p do
- local pt=node_type(p.id)
- if pt == 'glyph' then
- print(depth .. ' glyph', p.subtype, utf.char(p.char), p.font)
- elseif pt=='hlist' then
- print(depth .. ' hlist', p.subtype, '(' .. print_scaled(p.height)
- .. '+' .. print_scaled(p.depth)
- .. ')x' .. print_scaled(p.width) )
- ltj.show_node_list(p.head)
- depth=k
- elseif pt == 'whatsit' then
- print(depth .. ' whatsit', p.subtype)
- elseif pt == 'glue' then
- print(depth .. ' glue', p.subtype, print_spec(p.spec))
- else
- print(depth .. ' ' .. s, s.subtype)
+ if p.sub then
+ debug_depth = k .. '_'; debug_show_node_X(p.sub, print_fn);
end
- p=next_node(p)
- end
-end
-
-
-
---- the following function is modified from jafontspec.lua (by K. Maeda).
---- Instead of "%", we use U+FFFFF for suppressing spaces.
-local function process_input_buffer(buffer)
- local c = utf.byte(buffer, utf.len(buffer))
- local p = node.new(id_glyph)
- p.char = c
- if utf.len(buffer) > 0
- and ltj.is_ucs_in_japanese_char(p) then
- buffer = buffer .. string.char(0xF3,0xBF,0xBF,0xBF) -- U+FFFFF
- end
- return buffer
-end
-
-
----------- Hyphenate
-local function suppress_hyphenate_ja(head)
- local p
- for p in node.traverse(head) do
- if p.id == id_glyph then
- local pc=p.char
- if ltj.is_ucs_in_japanese_char(p) then
- local v = has_attr(p,attr_curjfnt)
- if v then
- p.font=v
- local l=ltj.find_char_type(pc,ltj.font_metric_table[v].jfm) or 0
- node.set_attribute(p,attr_jchar_class,l)
- end
- v=has_attr(p,luatexbase.attributes['luatexja@ykblshift'])
- if v then
- node.set_attribute(p,attr_yablshift,v)
- else
- node.unset_attribute(p,attr_yablshift)
- end
- p.lang=ltj.ja_lang_number
- end
+ debug_depth = k;
+ elseif pt=='math_char' then
+ s = base .. ' fam: ' .. p.fam .. ' , char = ' .. utf.char(p.char)
+ print_fn(s)
+ elseif pt=='sub_box' then
+ print_fn(base)
+ if p.head then
+ debug_depth = k .. '.'; debug_show_node_X(p.head, print_fn);
end
+ else
+ print_fn(base)
end
- lang.hyphenate(head)
- return head -- 共通化のため値を返す
+ p=node_next(p)
end
+
-- callbacks
-luatexbase.add_to_callback('process_input_buffer',
- function (buffer)
- return process_input_buffer(buffer)
- end,'ltj.process_input_buffer')
luatexbase.add_to_callback('pre_linebreak_filter',
function (head,groupcode)
- return main_process(head)
- end,'ltj.pre_linebreak_filter',2)
-luatexbase.add_to_callback('hpack_filter',
- function (head,groupcode,size,packtype)
- return main_process(head)
- end,'ltj.hpack_filter',2)
-
---insert before callbacks from luaotfload
+ return main_process(head, true, tex.textdir)
+ end,'ltj.pre_linebreak_filter',
+ luatexbase.priority_in_callback('pre_linebreak_filter',
+ 'luaotfload.pre_linebreak_filter') + 1)
luatexbase.add_to_callback('hpack_filter',
- function (head,groupcode,size,packtype)
- return suppress_hyphenate_ja(head)
- end,'ltj.hpack_filter_pre',0)
-luatexbase.add_to_callback('hyphenate',
- function (head,tail)
- return suppress_hyphenate_ja(head)
- end,'ltj.hyphenate')
+ function (head,groupcode,size,packtype, dir)
+ return main_process(head, false, dir)
+ end,'ltj.hpack_filter',
+ luatexbase.priority_in_callback('hpack_filter',
+ 'luaotfload.hpack_filter') + 1)
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